When it's snowing and you use spells like "earth", that creates temporary blocks, it is possible that snow is placed on that temporary block, and after the temporary block is gone, the snow stays there in mid-air.

I don't know whether it is supposed to be this way or not, but I just thought it was worth letting you know.

It's not supposed to be that way :)

I seem to recall fixing it though.. maybe not. Can you please let me know what version of Magic you're on?

7.6.8